Measurement of the partial widths of the Z into up- and down-type quarks

G Abbiendi; Georgios Anagnostou; Paul Bell; David Charlton; Christopher Hawkes; Predrag Jovanovic; Stephen O'Neale; Miriam Watson; Peter Watkins; Alan Watson; Nigel Watson; John Wilson

doi:10.1016/j.physletb.2004.02.046

Measurement of the partial widths of the Z into up- and down-type quarks

G Abbiendi, Georgios Anagnostou, Paul Bell, David Charlton, Christopher Hawkes, Predrag Jovanovic, Stephen O'Neale, Miriam Watson, Peter Watkins, Alan Watson, Nigel Watson, John Wilson

Physics and Astronomy

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3 Citations (Scopus)

Abstract

Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z --> qqgamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter. Combining the measured rates of Z --> qqgamma decays with the total rate of hadronic Z decays permits the simultaneous determination of the widths of the Z into up- and down-type quarks. The values obtained, with total errors, were Gamma(u) = 300(-18)(+19) MeV and Gamma(d) = 381(-12)(+12) MeV. The results are in good agreement with the Standard Model expectation. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	167-182
Number of pages	16
Journal	Physics Letters B
Volume	586
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.02.046
Publication status	Published - 29 Apr 2004

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title = "Measurement of the partial widths of the Z into up- and down-type quarks",

abstract = "Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z --> qqgamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter. Combining the measured rates of Z --> qqgamma decays with the total rate of hadronic Z decays permits the simultaneous determination of the widths of the Z into up- and down-type quarks. The values obtained, with total errors, were Gamma(u) = 300(-18)(+19) MeV and Gamma(d) = 381(-12)(+12) MeV. The results are in good agreement with the Standard Model expectation. (C) 2004 Elsevier B.V. All rights reserved.",

author = "G Abbiendi and Georgios Anagnostou and Paul Bell and David Charlton and Christopher Hawkes and Predrag Jovanovic and Stephen O'Neale and Miriam Watson and Peter Watkins and Alan Watson and Nigel Watson and John Wilson",

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doi = "10.1016/j.physletb.2004.02.046",

language = "English",

volume = "586",

pages = "167--182",

journal = "Physics Letters B",

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TY - JOUR

T1 - Measurement of the partial widths of the Z into up- and down-type quarks

AU - Abbiendi, G

AU - Anagnostou, Georgios

AU - Bell, Paul

AU - Charlton, David

AU - Hawkes, Christopher

AU - Jovanovic, Predrag

AU - O'Neale, Stephen

AU - Watson, Miriam

AU - Watkins, Peter

AU - Watson, Alan

AU - Watson, Nigel

AU - Wilson, John

PY - 2004/4/29

Y1 - 2004/4/29

N2 - Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z --> qqgamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter. Combining the measured rates of Z --> qqgamma decays with the total rate of hadronic Z decays permits the simultaneous determination of the widths of the Z into up- and down-type quarks. The values obtained, with total errors, were Gamma(u) = 300(-18)(+19) MeV and Gamma(d) = 381(-12)(+12) MeV. The results are in good agreement with the Standard Model expectation. (C) 2004 Elsevier B.V. All rights reserved.

AB - Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z --> qqgamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter. Combining the measured rates of Z --> qqgamma decays with the total rate of hadronic Z decays permits the simultaneous determination of the widths of the Z into up- and down-type quarks. The values obtained, with total errors, were Gamma(u) = 300(-18)(+19) MeV and Gamma(d) = 381(-12)(+12) MeV. The results are in good agreement with the Standard Model expectation. (C) 2004 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.physletb.2004.02.046

DO - 10.1016/j.physletb.2004.02.046

M3 - Article

VL - 586

SP - 167

EP - 182

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

Measurement of the partial widths of the Z into up- and down-type quarks

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